SCIENCE
MARK ROBERCan sharks smell a drop of blood in the water? How do germs spread? Can drones plant 20,000,000 trees? How do you measure how much pee is in your pool? Mark Rober answers all of these questions in his well-known YouTube videos. Check out some of them here.
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NANO GIRLNanogirl (AKA Dr Michelle Dickinson) is a nanotechnologist, scientist and engineer with a passion for explaining complex concepts in simple to understand ways. Check out some of her awesome videos here.
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